<span>1) Solve the system of equations using the substitution method.
2x+8y=4
x=−3y+5
we have that
</span>2(−3y+5)+8y=4---------- > -6y+10+8y=4---------- > 2y=-6-----> y=-3
x=−3y+5----------> x=−3*(-3)+5=14
the answer is
x=14
y=-3
2 <span>Solve the system of equations using the linear combination method.
5m+3n=41---------- > 2*[</span>5m+3n=41]---------------- > 10m+6n=82<span>
3m−6n=9-------------------------------------------------- > </span>3m−6n=9
---------------------
13m+0n=91
m=91/13=7
3m−6n=9--------------- > 3*7−6n=9----------- >21-9=6n-----------> n=2
the answer is
m=7
n=2
<span>3. Solve the system of equations using the linear combination method.
6g+8h=40
−6g+2h=−20
------------------
0+10h=20------------- > h=2
</span> 6g+8h=40--- > 6g+8*2=40-> 6g=24-> g=4
the answer is
h=2
g=4
<span>4. Solve the system of equations using the linear combination method.
9x+5y=35------------- > -1*[</span>9x+5y=35]--------> -9x-5y=-35<span>
2x+5y=0-------------------------------------------- > </span>2x+5y=0
<span> ----------------------
-7x+0=-35
x=5
</span>9x+5y=35- > 9*5+5y=35---- > 5y=-10--------- > y=-2<span>
</span>the answer is
x=5
y=-2<span>
</span>
Use this method it on the pg number 125 of ncert book
OK so we know that the other side is 12 because the right triangle has to have two sides that add up to the hypotenuse, and I believe it gives you the answer in the question because you are trying to find x which it says x is the angle, and since its a right triangle, it would be 90°
Answer:
choice A
Step-by-step explanation:
f(x) * g(x) = √2x × √18x
= √36 * x
= 6x
Answer:
I think b
Step-by-step explanation: